She’s in the home stretch!

Pregnant Jill Duggar posted an update on her blog about baby No. 2 with her husband Derick Dillard — and even though she’s still three months away from her due date, she’s already got an adorable nickname for her baby boy.

“The pregnancy is going well thus far, as we make it into the home stretch now. Little “Samuelito” (as the locals call him) sometimes wakes mommy up at night now with his active kicking,” the 25-year-old wrote. “We look forward to returning home soon to prepare for the birth (before we can’t fly anymore!)”

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Jill and her hubby are currently stationed in Central America on a missionary trip, so she’s spent a great deal of her pregnancy working in villages with women as a midwife while Derick teaches ESL classes and also tutors in math. The couple’s son Israel — who just turned two earlier this month — also spent the majority of his little life in the country. But even though Jill and Derick are focused on their mission work, they’re also proud of being parents.

“We really love being parents and just seeing — as a father specifically — I enjoy seeing his development and being able to teach him new things, like to see him catch a ball,” the 28-year-old shared.

MORE: See the Entire Duggar Family — Then Vs. Now!

Jill revealed that the toddler loves to play with Play-Doh and he also likes sports like baseball, soccer, and football. He is also learning his first words — which include “thank you,” “no thank you,” and “I love you.”

It’s a good thing Little Izzy is learning so quickly because he’ll be able to teach his new little brother some of his favorite games and words! And Jill and Derick — who have been married since 2014 — told People that parenting Izzy has been so much fun that they’re really looking forward to expanding their little family.

“We are thankful to God for this sweet child and we cannot wait to see her or him face to face!” they said.

Scroll through the gallery below to see more adorable photo of little Izzy!